Or youu could do what I\'ve seen in another game - have lockers for storage of items for inviduals. In that game, though, you could get a room at the inn (and only you could access said room), and then you\'d have the locker in there. This room was the same for all the characters on that account, so you didn\'t have 6 different rooms. Any items one character put into storage weren\'t accessible by other characters (hence no item-sharing).
An item bank or vault of some sort would probably be easiest, though - a magical, extra-dimensional space accessible only by a handprint or a key.